ATLAS collaboration (2859 authors)Aguilar-Saavedra, Juan AntonioAmor Dos Santos, Susana PatriciaAnjos, NunoAraque, Juan PedroCarvalho, JoãoCastro, Nuno FilipeConde Muiño, PatriciaDa Cunha Sargedas De Sousa, Mario JoseFiolhais, MiguelGalhardo, BrunoGomes, AgostinhoGonçalo, RicardoJorge, PedroMachado Miguens, JoanaMaio, AméliaManeira, JoséOleiro Seabra, Luis FilipeOnofre, AntónioPedro, RuteSantos, HelenaSaraiva, JoãoSilva, JoséTavares Delgado, AdemarVeloso, FilipeWolters, Helmut2019-02-042019-02-042016-10-27http://dx.doi.org/10.1140/epjc/s10052-016-4400-6http://hdl.handle.net/10400.26/27156A search for neutral Higgs bosons of the minimal supersymmetric standard model (MSSM) and for a heavneutral $Z^{\prime }$ boson is performed using a data sample corresponding to an integrated luminosity of 3.2 fb$^{-1}$ from proton–proton collisions at $\sqrt{s} = 13$    ${\mathrm {TeV}}$ recorded by the ATLAS detector at the LHC. The heavy resonance is assumed to decay to a $\tau ^+ \tau ^-$ pair with at least one $\tau $ lepton decaying to final states with hadrons and a neutrino. The search is performed in the mass range of 0.2–1.2   ${\mathrm {TeV}}$ for the MSSM neutral Higgs bosons and 0.5–2.5   ${\mathrm {TeV}}$ for the heavy neutral $Z^{\prime }$ boson. The data are in good agreement with the background predicted by the Standard Model. The results are interpreted in MSSM and $Z^{\prime }$ benchmark scenarios. The most stringent constraints on the MSSM $m_A$ – $\tan \beta $ space exclude at 95 % confidence level (CL) $\tan \beta > 7.6$ for $m_A = 200$   $\text {GeV}$ in the $m_{h}^{\text {mod+}}$ MSSM scenario. For the Sequential Standard Model, a $Z^{\prime }_\mathrm {SSM}$ mass up to 1.90   ${\mathrm {TeV}}$ is excluded at 95 % CL and masses up to 1.82–2.17   ${\mathrm {TeV}}$ are excluded for a $Z^{\prime \mathrm {SFM}}$ of the strong flavour model.engjournal article2019-02-04